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高分子化学是高校材料专业的基础课程,对于培养材料专业高级人才非常重要。文章从理论、价值和实践三重维度探讨了全面推进课程思政建设:基于理论维度,探索如何挖掘高分子化学所蕴含的思想政治教育元素并有机融入教学中;基于价值维度,探索如何帮助学生实现个人专业提升与中华民族伟大复兴中国梦实现的内在统一;基于实践维度,探索如何优化课程设置与完善教学设计。高分子化学教学实践中深入贯彻新时代中国特色社会主义思想,践行“三全育人”理念,以期实现铸魂育人。 相似文献
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专业选修课是高校课程体系中的重要组成部分,也是构建完善专业课程思政体系的重要组成部分。作者通过对“精细化学品化学”进行课程思政教学改革和实践,整合课程教学内容,完善知识体系;丰富课程教学活动,强化能力培养;深挖课程思政元素,践行立德树人,加强价值引导,构建以“绿色化学”为核心的课程思政教学理念,并深刻融入制药工程专业课程思政体系,以期为专业选修课实现“三全育人”提供参考和借鉴。 相似文献
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主要探究在课程思政视域下,如何挖掘中学化学思政素材,设计出协同育人的高中化学教学设计,实现隐性教育与显性教育的有机融合。以“化学能与电能”的教学为案例,充分挖掘“原电池”课程中的思政内涵,设计出基于课程思政的教学目标与评价目标,最终实现本节课的思政育人目标,从而在中学化学具体的教学中融入思政元素,提升学生的理论联系实际的能力,辩证思维能力,创新思维能力等,培养学生的爱国情怀,绿色可持续发展理念等。 相似文献
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苯乙烯是重要的石油化工原料。本文介绍了国内外苯乙烯生产的发展概况,合成乙苯,苯乙烯所用的催化剂种类,并就苯乙烯生产及催化剂的发展趋势提出了自己的观点。 相似文献
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Synthesis and characterization of homopolymers and copolymers of various acrylates and acrylonitrile
Various homopolymers and copolymers of methyl acrylate, ethyl acrylate, butyl acrylate, and acrylonitrile in different feed ratios were synthesized. These were characterized by IR, 13C-NMR, DSC, DTA, and TGA. Spectroscopic characterization helped in differentiating copolymers of different mol ratios. Thermal analysis revealed different degradation patterns for homopolymers and copolymers. The temperature and energy changes associated with various phase transitions were dependent on the chemical composition of homo- and copolymers, as expected. © 1993 John Wiley & Sons, Inc. 相似文献
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The variation of the Au 4f binding energy of Au clusters with the cluster size has been established by measuring the binding energies of clusters whose size distributions were independently determined by HREM and STM. The binding energy increases significantly when the cluster size is less than 2 nm. Au-Cu bimetallic clusters of the composition Cu3Au have been deposited for the first time on carbon substrates. The shifts in the core level binding energies of the bimetallic clusters show the effect of alloying in the case of large clusters, but show effects of both alloying and cluster size in the case of the small clusters. The interaction of CO with Cu3Au clusters is stronger than with a bulk Cu metal. The interaction of CO with small Cu clusters also seems to be stronger than with bulk Cu or with large Cu clusters. 相似文献
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责任是人应主动承担的角色义务和对其因过失所造成后果应承担的责罚.有两层涵义:一是义务;二是后果.责任心是个体自觉做好分内事务和履行道德义务的心理倾向,是个性心理品质成分中自我特征维度上的重要内容.责任心具有两个方面的涵义:一是角色分内职责;二是角色道德义务.责任心是一种通过责任认知、责任个性和责任适应的动态形式表现出来的静态品质,责任心是责任心过程结构与责任心关系结构相互制约、相互影响的统一体. 相似文献
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G. R. Hamed 《The Journal of Adhesion》1983,16(1):31-39
A substantially greater detachment energy is required to strip a polyethylene tereph-thalate (Mylar) film from a styrene-butadiene-styrene (SBS) triblock copolymer compared to that for peeling from a random styrene-butadiene (SBR) copolymer. This is true even though the intrinsic interaction between the Mylar and each elastomer is expected to be similar because of their virtually identical chemical composition. It is proposed that this difference in peel strength (between the SBS and SBR) is a consequence of the much higher dissipative capacity of the former elastomer. Another manifestation of this is the higher cohesive tear strength of the SBS compared to the SBR. Extents of energy dissipation within each elastomer during detachment of the Mylar adherend are consistent with the hypothesis that the average maximum stress experience before detachment is some similar fraction of each elastomer's tensile strength. 相似文献
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对用甘油锌作光稳定剂的光稳定作用进行了测试,并与光稳定剂NBC,BZ进行了比较。研究了甘油锌,NBC和BZ与双酚A的复配效果。研究结果表明,甘油锌是一种性能优良的光稳定剂。 相似文献
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《国际聚合物材料杂志》2012,61(1-4):113-122
Abstract Kinetics and mechanisms of oxidation of 6 acetals by molecular oxygen and ozone in liquid phase have been studied. Reaction with molecular oxygen (70°C, 15–16 hr) leads to the formation monoethers of the corresponding glycols with 68–90% selectivity. Salts of metals and complexes with crown-ethers have increased the reaction rate significally. Ozone have reacted with acetals with formation similar products. The mechanisms of intermediate stages have been proposed. 相似文献